What is the general behavior of Kubernetes Deployment's default update strategy during updates?

What is the general behavior of Kubernetes Deployment's default update strategy during updates?

• A. Update all pods simultaneously
• B. Permanently stop updates after first failure
• C. Only update environment variables
• D. Update pods one by one to minimize downtime

Answer: (D)

Rolling updates are the default approach for Kubernetes Deployments. Instead of updating all pods at once, the system replaces old pods with new ones in small steps, gradually rolling through the set of replicas. This keeps the application available throughout the upgrade, because some pods remain serving traffic while others are updated. The exact pace is influenced by settings like maxUnavailable and maxSurge, but the core idea is that updates happen in a rolling manner to minimize downtime. So updating pods one by one (or in small batches) to maintain service availability is the best description.

Rolling updates are the default approach for Kubernetes Deployments. Instead of updating all pods at once, the system replaces old pods with new ones in small steps, gradually rolling through the set of replicas. This keeps the application available throughout the upgrade, because some pods remain serving traffic while others are updated. The exact pace is influenced by settings like maxUnavailable and maxSurge, but the core idea is that updates happen in a rolling manner to minimize downtime. So updating pods one by one (or in small batches) to maintain service availability is the best description.